Heater



July 6,1926. 1,591,091 J. MONSEN Y HEATER Filed April l, 1924 000000000- o Q Oo JwanCo-z 70701 Marwan Patented Jil'ly, .192e`VV Y .ToHN-iMo'NsEN,onnn'rnorr, M1eHnfsrAN.-,v

'4 HEATER@ i Application flied' 'prii 1, 1fs24g' striaifio.tea-,aai

Theinvention relates to economizers for steam boilers and is particularly adaptable stack gases -it is possible to placean economizer in the stack, butk this isfoften objec tionable becausev it forms an obstruction and some times interferes withthe draft( i It is the primaryobject of my invention to" VV provide an economizer'for increasing the efficiency of a boiler installation, but which Y `is arranged so as to avoid impairment of the* draft. Anotherfobject'is to provide a construction which may be adjusted so asv to vary the obstruction to the exhaust gases and to form in effect a draft regulator or f parts'being broken away .level than the header F.

damper. A further' object is to arrange the economizer for the direct generation of ad` ditional steam instead of merely heating the feed water.

VIn the drawings y v Y Figure l is a side elevation of a boiler,

Vtion of the economizer;

Figure 2 is aniend yelevation ofthe boilerjv lFigure 3' is a transverse section through theV smoke box with the economizer in vertical position.

A represent'sthe boiler shown in the draw-,.-

ings yas" a horizontal fire tube boiler having the longitudinal fire tubes A and the upper steam drum B, the water level being shown at C. D is the smoke boxhaving lthe 'stack D extending upwardly therefrom. 1

My improved economizer comprises va gridv E formed ofafplurality of'water tubes Eu Y connected at opposite ends'to theheadersfF andF. The grid is pivotally supported by the swivel brackets Gand G to 'the boiler A and is preferably arranged so as tohave portions .thereof both above,` and below the vwaterline C of the boiler.l YThe brackets G and Grv are also larranged so that the water tubes vE ofthe grid are at an `inclination to a horizontal plane as shown vini Figure 2, 4this ar- Y rangementplacing the header F at a higher p The grid isarf ranged to be rotatable about the swivel Vbrackets G and G and is adjustable by means of the handle H from a 'vertical to'a to show the loca` maaien posata* in" the more" as. if,

theformer position the grid-offerssubstantiallyno obstruction'- to the passage of *the* exhaust gases through thestack, while in the horizontal .position substantially the entirev amount of the. stack gases must pass through the same Y.thereby offering the maximum heating effectl to the tubes E.

The lowerheader F visconnected through complished byplacing the grid in as near a horizontal-position asis possible while still Y the swivel bracket Gr to av conduit I leading' f to. the portion 'of' the boiler below the water,v l line, while the upperfheaderF-is connected by a similar connection J to the steam drum v With the construction as described the po-f sition ofthe grid in the smoke box may beVv fmanually, varied, and When it is desired toV obtain the greatest economy this maybe ac-V obtaining the necessary draft for the opera- Y tion of the lire grate; If, however, the conditions are such that the draft is poor and thev grid forms too Amuch of an obstruction yso then it may be adjustedtoward the ,verticalV position .until sufficient draft is., obtained.

fBy arranging the economizer so that it is alj ways partly `below and lpartlyY above the ywater line of the :boiler vthe heat 'extracted' from the waste; gases is utilized in -generating additional steam, whereasif it were placed entirely above the water line it'would serve merely as a super-heater. This isparticularly desirable when the economizer -is utilized on boiler installations for domestic use vin heating homes where-it is not desired to obtain super-heated steam. What I claim as'my invention is l'.v rllhe combinationY 'with' va boiler .having a stack Vforlwaste gases, of an; economizer 1 arranged in said stack to permanently lie in lthe path of said gases and comprising a sevries ofwater tubesconnected'to said boiler above and below the water line therein, said econorrn'zer vbeing' mounted insaid stack to p'ivot'aboutan axisv intersecting the gaseous passage .andfj thereby .variably Vrestricting said passage.'

'2. The combination withy a boiler having `a vstack'for wastegases, of .an auxiliaryheatyer vkpivotally mounted in said stack to-turn ,about an axis'intersecting the gaseous pas?` f Y `sage and thereby variably obstructing said*V passage, said heater being arranged to'have portions thereof above andbelow the water Vlinein saidv boiler, and connections from the upper and lower portions respectively corn-Y munoating with said boiler above and below the water line.

3'. The oombinationwith a boilerliavng a stack for waste gases; of an auxiliary heater arranged in said stack. to pivot about an axis inclined to cross the Vwater level in the boiler wherebr 'the passage through said stack is varably obstructed and said heater is par- Y 10 tially below said water level in all its Yposi*- VtionsV o1 pivotal adjustment,v o said heater 'comprising a VVseries of water tubes having 'portions thereof above andbelow the water line in-'saidboler7 headers for said tubes,. Y

-and connections from said headers respec-v tively communicating with said boiler above and below the'water line.

In testimony whereofrl affix-'myV signature. Y 

